Definition of luminous adjective from the Oxford Advanced Learner's Dictionary

     

    luminous

     adjective
    adjective
    BrE BrE//ˈluːmɪnəs//
     
    ; NAmE NAmE//ˈluːmɪnəs//
     
     
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  1. 1shining in the dark; giving out light luminous paint luminous hands on a clock staring with huge luminous eyes (figurative) the luminous quality of the music
  2. 2very bright in colour They painted the door a luminous green. I hated the luminous yellow colour of the plastic. Synonymsbrightbrilliant vivid vibrantThese words all describe things that are shining or full of light or colours that are strong and easy to see.bright full of light; shining strongly; (of colours) strong and easy to see:a bright yellow dressbrilliant very bright:The sky was a brilliant blue.vivid (approving) (of colours) bright and strong:His eyes were a vivid green.vibrant (approving) (of colours) bright and strong:The room was decorated in vibrant blues and greens.vivid or vibrant? These two words are very similar, but vivid emphasizes how bright a colour is, while vibrant suggests a more lively and exciting colour or combination of colours.Patterns bright/​brilliant/​vivid/​vibrant colours bright/​brilliant light/​sunlight/​sunshine/​eyes
  3. Word Origin late Middle English: from Old French lumineux or Latin luminosus, from lumen, lumin- ‘light’.
See the Oxford Advanced American Dictionary entry: luminous

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